leaves for a mastiff dog (Great Dane 20 months and 80 kilos of muscles ....) ... measuring 1m88 for 85 kilos, I need all my kilos to take my dog, which is lovely there, developed superhuman strength .... the leash is very comfortable in hand (most important!) and I hope it will last long! Not that I doubt his quality, but I know the propensity of my young dog at any shred .... and he is capable of much ... I strongly recommend buying this leash ...